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1980年河北省农科院经作所14.5亩棉花高产试验田,平均亩产皮棉210.98斤。品种鲁棉1号。4月14日播种,亩留苗4,080株,单株成铃16.77个,单铃重4.4克,衣分36%,平均亩收获3,900株。主要措施:①苗期中耕1次,比以往减少1—2次;②在第一片真叶展开前间苗,三叶期及时定苗;③现蕾第二天第一次亩追酱干(微效肥)42斤、尿素8斤,盛花期追施硫铵23斤;④盛蕾后初花期浇头水,开花期浇第二水,7月12日浇
Hebei Academy of Agricultural Sciences in 1980 by the Institute of 14.5 acres of cotton yield test field, an average of 210.98 pounds per mu lint. Lumi cotton varieties on the 1st. April 14 sowing, 4,080 acres of Mula Miao, per plant boll number 16.77, boll weight 4.4 grams, 36% clothing points, the average harvest of 3,900 acres of acres. The main measures: ① seedling cultivating 1 times, 1-2 times less than in the past; ② in the first true leaf before the start of seedling, clover period and timely Dingmiao; Fertilizer) 42 pounds, 8 pounds of urea, full bloom topdressing ammonium sulfate 23 pounds; ④ Sheng Lei early flowering head water, flowering second water, pouring on July 12